University of California

Eradication costs calculated: Red imported fire ants threaten agriculture, wildlife and homes


Karen M. Jetter
Jay Hamilton
John H. Klotz

Publication Information

Hilgardia 56(1):26-34. DOI:10.3733/ca.v056n01p26. January 2002.

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The red imported fire ant, a pest newly introduced into California, threatens households, agriculture and wildlife. This study estimates the costs and benefits of a public program to eradicate the ants. The results show that almost all agricultural activities would be affected should the ants become established; however, households would incur the majority of costs. The total estimated cost if red imported fire ants become established would be between $387 million and $989 million per year in California. Given current funding levels for eradication of red imported fire ants, for the expected benefits to be at least as great as the expected costs, the probability of successfully eradicating the ants needs to be at least 0.65% if the annual costs of establishment are $989 million and 1.67% if they are $387 million.


Adams CT. Destruction of egg-plants in Marion County, Florida by red imported fire ants (Hymenoptera: formicidae). Fla Entomol. 1983. 66:518-20. https://doi.org/10.2307/3494028

Allen CR, Demarais S, Lutz RS. Red imported fire ant impact on wildlife: An overview. Texas J Science. 1994. 46:51-9.

Banks WA, Adams CT, Lofgren CS. Damage to young citrus trees by the red imported fire ant (Hymenoptera: formicidae). J Econ Entomol. 1991. 84:241-6.

Barr CL, Drees BM. Results from the Texas veterinarian survey: Impact of red imported fire ants on animal health. 1994. In: Proc, 1994 Imported Fire Ant Conference. May 9–11. Mobile, AL. 12.

Brinkley CK, Ervin RT, Sterling WL. Potential beneficial impact of red imported fire ant to Texas cotton production. Biol Agric Hort. 1991. 8:145-52.

Coppock R, Kreith M. Exotic Pests and Diseases: Biology, Economics and Public Policy.. UC Agricultural Issues Center 1999. Davis, CA: 252.

[DOF] California Department of Finance. City/County Population and Housing Estimates, 1991-2000 with 1990 Census Counts. 2000. Sacramento: www.dof.ca.gov/html/Demograp/E-5.xls

Drees B. Red imported fire ant predation on nestlings of colonial waterbirds. SW Entomol. 1994. 19:355-9.

Dukes FR, Miller SE, Henry MS, et al. Household experiences with the red imported fire ant in South Carolina. 1999. 17. Working paper. Clemson U, Dept Ag & Applied Econ.

Hoddle M, Morse J, Phillips P, et al. Avocado thrips, another exotic pest of California agriculture. Cal Ag In press.

Jones D, Thompson L, Davis K., Wojick D. Economic impact of fire ants on Arkansas row-crop producers — a follow-up survey. 1997. Proc, 1997 Imported Fire Ant Research Conference. Gainesville, FL. 9.

O'Connell N, Klonsky K, Freeman M, et al. Sample Costs to Establish an Orange Orchard and Produce Oranges. 1999. UC Cooperative Extension. 21p. http://coststudies.ucdavis.edu

Stewart JS, Vinson SB. Red imported fire ant damage to commercial cucumber and sunflower plants. SW Entomol. 1991. 16:168-70.

Takele E, Bender G, Walton D. Establishment and Production Costs for Lemons, San Diego County. 1998. UC Cooperative Extension. 20 p. http://coststudies.ucdavis.edu

Takele E, Mauk P. Establishment and Production Costs for Grapefruit, Riverside County. 1998. UC Cooperative Extension. 20 p. http://coststudies.ucdavis.edu

Teal S, Segarra E, Moates K, et al. Spatial impacts of the Red Imported Fire Ant on the Texas Cattle Industry. Texas Tech U, Dept Ag & Applied Econ. 1998. 38.

[USDA] US Department of Agriculture. National Agricultural Statistics Service. 1999. 451. 1997 Census of Agriculture; California State and County Data. Vol 1. Geographic Area Series, Part 5. Washington, DC.

Jetter K, Hamilton J, Klotz J. 2002. Eradication costs calculated: Red imported fire ants threaten agriculture, wildlife and homes. Hilgardia 56(1):26-34. DOI:10.3733/ca.v056n01p26
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